/*
 * Author: Chau Quoc Dieu
 * Last modify date: 19-20-2010
 */
package vn.hva.bluepumpkin.server.servlets;

import java.io.IOException;
import java.io.PrintWriter;
import java.rmi.RemoteException;
import javax.ejb.CreateException;
import javax.naming.NamingException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import vn.hva.bluepumpkin.Constants;
import vn.hva.bluepumpkin.common.dto.UserDTO;
import vn.hva.bluepumpkin.common.util.ServiceLocator;
import vn.hva.bluepumpkin.ejb.session.event.RequestFacadeRemote;
import vn.hva.bluepumpkin.ejb.session.event.RequestFacadeRemoteHome;
import vn.hva.bluepumpkin.exception.ServerValidationException;

/**
 *
 * @author Windows XP
 */
public class ProcessRequestServlet extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        HttpSession session = request.getSession(false);
        UserDTO userDTO = new UserDTO();
        //get user session
        userDTO = (UserDTO) session.getAttribute("user");
        //if user hadn't login
        if (userDTO == null) {
            response.sendRedirect(Constants.EMPLOYEE_URL + "login.jsp");
            System.out.println("------------------------Null Login");
        }
        //initial userid 
        int userid = userDTO.getUserid();
        //is the request send
        boolean isSend = false;
        try {
            try {
                RequestFacadeRemoteHome remoteHome = (RequestFacadeRemoteHome) ServiceLocator.getEjbRemoteHome("java:RequestFacade", RequestFacadeRemoteHome.class);
                RequestFacadeRemote remote = remoteHome.create();
                //initial isSend variable for store send request result
                isSend = remote.sendRequest(Integer.parseInt(request.getParameter("eventID")), userid, 1, "Default");

                //send request success
                if (!isSend) {
                    System.out.println("**************Send Fail");
                    response.sendRedirect(request.getContextPath());
                } else { //send request fail
                    System.out.println("**************Send Success");
                }

            } catch (RemoteException ex) {
                ex.printStackTrace();
            } catch (ServerValidationException ex) {
                ex.printStackTrace();
            } catch (CreateException ex) {
                ex.printStackTrace();
            } catch (NamingException ex) {
                ex.printStackTrace();
            }
        } finally {
            out.close();
        }
    }

    public void returnResult(PrintWriter out, boolean rs, String note) {
        out.println("<?xml version=\"1.0\"?> ");
        out.println("<root>");
        out.println("<result>" + rs + "</result>");
        out.println("<note><![CDATA[" + note + "]]></note>");
        out.println("</root>");
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
